Will a Nikon Metz Mecablitz 64 Af-1 Wi-Fi work with an olympus camera?

I have a metz mecablitz 64-af1 flash gun that can talk to my nikon camera via wireless and basically flash without the need for it to be ohysically attached to the camera.

I was wondering if, even though this flash is for nikon can insimply use manual mode 'wirelessly' with my olympus camera?

No… Oly doesn't use the same signaling as Nikon. This isn't just an optical slave that goes off with another flash, it is a full TTL communication via light signals. You have to have a flash dedicated to the proper TTL model to work, and every camera maker is different.

No. Nikon and Olympus cameras communicate with flashes differently, and the pin configuration at the bottom of the shoe different too.